--- layout: devinfo app: TWLBoardChecker altname: BOARD category: [TWL EVA] sequence: TRUE redirect_from: /dsidev/twlboardchecker.html group: true preview: /preview.png --- BOARD is the first phase of DSi testing in the factory. A bare DSi motherboard would be placed in a special box, and hardware tests would be performed to ensure there are no shorts or other faults. All of these tests would be controlled externally by a DS lite running the TWL CPU Board Sequencer app. While we don't have photos of the DSi testing hardware, you can see a similar thing with the CTR BOARD process below, where a DSi would control tests on a 3DS motherboard.
TWL CPU Board Sequencer would also format the NAND and flash the SDMC Launcher bootloader, allowing the DSi to run apps of off an SD card. This makes it possible to move onto the PRE_IMPORT stage and write factory firmware afterwards.

Screenshots